Ngga Pulu

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The Ngga Pulu is a survey with a height of 4862 m meters in the Sudirman Mountains in the Indonesian part of the island of New Guinea. Because of its low dominance and prominence of the summit is often regarded as a secondary peak to New Guinea 's highest mountain, the Carstensz Pyramid. From the other side of the Ngga Pulu is considered as the second highest mountain in New Guinea. If the island to the continent of Australia is counted (see the definition of the Seven Second Summits ), the Ngga Pulu is on this view also the second highest mountain on the continent, and thus one of the Seven Second Summits.

Height loss of glacial melt

The summit was climbed on 5 December 1936, Anton Colijn, Jean -Jacques Dozy and Frits Wissel first time. Dozy calculated for the peak time barometrically a height of about 5030 m; a comparison of trigonometric surveys revealed that he was at that time actually 4907 meters high, making it taller than the 4884 m high Carstensz Pyramid. However, he has lost about 45 meters in height due to the melting of its summit glacier and is now lower than the unvergletscherte summit of Carstensz Pyramid.

Independence

The independence of the Ngga Pulu is controversial. This question of whether it is a mountain peak or a secondary summit is usually measured on the basis of the characteristic dominance and Vertical separation. The dominance of Ngga Pulu, ie the distance to the next higher point is 2.91 kilometers. The next highest peak is the Carstensz Pyramid.

Different information there for Vertical separation of Ngga Pulu, so the amount that you have at least descend in order to ascend to a higher point: The website peak excavator has - contradictory - "300 m/100 ' ", ie 300 meters (about 984 feet) and 100 feet ( about 30 meters). Eberhard Jurgalski set to a value of about 200 meters. Christian Stangl reported on its website two measurements by Helmut Kritzinger in October 2011. Accordingly, even higher values ​​, namely 373 meters from DGPS measurements and 373 meters from GPS measurements showed.

In addition to these different data, there are different requirements for the independence of a summit. Thus, for example, maintains Jurgalski the mountain, starting from about 200 meters notch depth, not for their own. In contrast, he says Stangl the autonomy to referring to the fact that in the four peaks of the Alps would suffice a notch depth of 30 meters for this purpose. Accordingly, there are different views as to whether the Ngga Pulu is to be classified as a separate mountain peaks, or as a secondary summit of Carstensz Pyramid. Looking at the summit as independently on, he can be counted among the Seven Second Summits.

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